A.
Red-giant(config)#ip route 192.168.5.0 255.255.255.0 serial 0
B.
Red-giant#ip route 192.168.1.1 255.255.255.0 10.0.0.1
C.
Red-giant(config)#route add 172.16.5.1 255.255.255.0 192.168.1.1
D.
Red-giant(config)#route add 0.0.0.0 255.255.255.0 192.168.1.0